Spring mounting for vehicles



July 27, 1926. l1,594,145

o. ARMLEDER SPRING MOUNTING FOR VEHICLES Filed NOV. 28, 1924 Patented July. 217, 192th y -1UN.1TED STAIE y oTTo ARMLEDEB.,'0F WYOMING, OHIO, AssIGNoB To THEv o. ARMnEDnR MOTOR TRUCKy COMPANY; for ,CINGINNATI, OHIO, A. CORPORATION or' orrro.

SPRINGMOUNTING FOR vErirCLEs. i

S' PATENT yifi . "derstood'from the following description and claims, and from the drawing, in which .pplication'led November 28, 1924. fSeral No.' 752,626. i

n My invention relates tol` spriixigy mounting for vehicles, and has fr its` objectthe prov 2. l v. a vision ofnovel means for mounting the body' of the vehicle upon the spring, and, further, `the provision of novel afrrangernent.oil con-y tact-faces between vthe body.` and springlv `;-`vhereb'y'the greatest resiliencein the spring 1s eiiefctive when the vehicle is under `no load or light load conditionandwhereby heavier portions of the spring'l become progressively effective in 'increasing ratio yas' the loady increases'. f i i l y `The invention will be further readily unlatter:- v Fig. lrepresents ,a side elevation Lof my y improved. spring mounting under yno-load p tions 'of the parts Vunder full-load condition.

condition, parts beingbroken away.V y i Fig. 21s a similar view, showing the rela- Fig. 3 is a 'cross-sectiomtaken in the plane of thelin'e 3;-3 of Fig. Ryland, v

isL a detail" inl cross-section, takeni 'on-the line of Fig.'1.

The' body of the vehicle comprises a usual 'chassis 11, shown partly broken away, and

comprises a side barl, shown as a channelmount-'ed on a suitable 'axle 14, extendingk rosswise underneath the body, v,for receivin wheels at the respective ends thereof;l I l r t each side'of the body there-is a spring l5. vThis spring is exemplied asl comprising leaves 16, whichare suitablyconnected together for assembled'relation', as by clips 17,;which permit relative lengthwise sliding movement vbetween the leaves' 'The spring is secured to the axle, for` instance "by, U4- boltslS, the loopfends 19 of whichl ar'ezreceived in slots 2O of yolres 21. yThe spring rests ona pillowy 22 supported by the axle.

The threaded ends of the U-bolts areirelceived throughv apertured Vlugs 28. ofV a cla1np-plate 24, extending crosswise under the axle, nuts 25 being'threaded yabout the the parts rigidlyftog'ether.

-contactaces 31.

threaded vends of said U-bolts for, clampingy spring `form `upwardly presented `conc'ziave chassis,`as by rivets' 134. The respective curvatures, exemplified as-a downward con, v'exffpjace 87 vofless curvature and a down#v ward convex face 38 ofl greater curvature7 'the ciirvatures merging into each other."`

These curvatures are similar to the curvature of th-efupwardly vpresented concavecon-vl p l tact-face of the'outer end of thespring, that is to saygthe coacting faces areV curved in p the same general directions, and the-respec-` tive fcurvatures of the b-loclrare* greater :curvatures than'said curvature kof said upwardly presented concave koontact-race of,

the outer end of the spring.4 7 f l y*The outer end .of the curved aceo the block, that is, the endtoward theyend lof ythespring, is also vprei'erably higher than the inner end of said 'curvedface ofthe` blockpa-nd the outerendof the curved 'face of the bloclris vpre'erablyfof less curvature than the inner 'end thereof, ,for -purposes u to be' presentlyv described." f Vbaig'of suitable metal. The wheels k13ans The block is preferably a hollow structure Blocks "38 are rigidly secured 'reto thel siny an'dgconverging end walls 42, 'an lupper bracewall 43, adownwardly presented bracket 3b', an outer wall 44, aside,flangeV 45, and `a bottom flange 46./- The. rivets 34 are received'through'holes in the lweb 47 and one` of the wings 48 orv the channel-bar 12 and` holes in .saidL flanges 45-and `46. yThe structure ofthe block forms an exceptionally` f l strong block of lcomparatively 1light-weight. `-When the vehicle is under, no-load condition, the -louter endy of the `downwardly pre# sented contactface or the block preferably rests lupon-the outer end'oi1 the upwardly presented",contact-face.at the outer end of, the springfforming-alinefcontact 51 be-i tween saidcontaot-aces atythe outer end of thespring. 7 Y. f i

,In this relation, as exemplified in Fig. 1,

the outer ends of/thecontact-,faces are,lin f vms singlecurvature, whose concaveside is prelfieffect, nearly-parallel in the directionofy 155 sented upwardly. :The'leaves' of thespring vlength o the spring,` and. the contactdine 1,. increase'uin llengthi'in upwardA progressioi vet'ween the Ablock and the spring-'isetthat r the upper l'eavesbein'gthe'longest ,andthe brtion of the spring which isi-,.1111ostl ref, i y,

leaves thereb'elow decreasing 'succe'ss'ivel ident, so that under such- 'no-load-conli;

The lupper fesant the enter ends 'ai the automatically easily obtained, and, the riding` of the vehicle is easy, undue vibration of the vehicle is avoided, and ready yielding ot' thevbody of the vehicle is obtained.

As the load increases, the contact-line between the downwardly presented curved contact-tace of the block and the upwardly presented curved contacttace of the spring, moves inwardly, that is, away from the outer end of the spring, so Athat the load-line or the body of the vehicle upon theV spring is nearer the heavy portion oi the spring, for instance', as shown in It will be noted that under ull-load relation exemplified in Fig. 2, the said cont-actline will have moved inwardly away from the outer end of the spring so to pass the middle portion of said lower contacte ot the b'loclt, and 'sp'e'cii'ically pass from tne portion of the downwardly presented contacttace of less curvature 87 to the porti-on 38 ot greater curvature oit said cci'itact-i'iace, the direct pressure of the loa-d being recel l by additional leaves ot th'espiing.v The ratio oi inward .n'i'oi'feniei'itV of the contacteline de'- creases under the heavy load Conditions under which the contact-face of greater curva-- ture 38 coacts' with. the contact-taccon the spring.

By means of my improved construction, a great resistance range in the spring is obtained, from 11o-load relation, in which the spring is very resilient,`to full-load relation, in which the spring has great refWftanCe. It will be further noted that by reason ot the similar curr ature's between the contact faces and the relations between said curvatures whereby the curvature ot the contact-face ot the block is greater than the curvature of the contact-tace ot the spring' and increases toward its inner end, the distance between the Contact line of said contact-faces under no-lo'ad condition and the contact-line between said contact-faces under full-,load conditions, extends throughout a con'iparative'ly great. portion of the end of the spring, so that a great range of resistance progressively accommodates great diilerences in load.

The inner end of the contact-face oit the block is of greater curvature than the outer end, vso that `under excessive load conditions occasioned for instance by the wheel on the fully loaded vehicle dropping yinto a hole, which would bend the outer ends of the spring downwardly lower than the axle, there is a more'abrupt curvature ot the contact-'face ot vthe block presented to the spring", to make the range of linefcontacts' duringy such ,fcessive load 'condi ion .upon the he vier portiens otthegspringless .than e df line-eontacts -duringusual load wise of the body, as by a suitable radius rod 53, which has articulation 54 with a lug 55 of the axle mountingat one end thereof, and is atits other end securedfto the body in well-known vmaimer not further shown or described because we`ll-lrnown.

In order to ,prevent excessive rebound be- The inner edge ot the spring is arrznigedk to be guided by the outer side tace ot the outer wall le ofthe block, there being such side faces oppositely presented at opposite sides oic the body for co'actng with the inner edges of thev springs.

The spring is shown as double 'ended in the drawings, projecting to both the front and rear ot the axle, although it is obvious that the spring` may have only onel end projecting toward the front or rear of its wheelsupport, or that the parts may be reversed, without departing from the spirit ot' my invention within ythe scope rofthe appended claims.

lvyvimproved spring mounting is exempliiied in connection with a so-called motortruck, but is applicable to other vehicles.

The curvature relations between the con` tact-tace on the bo'dy and the spring conf tact-tace, and lthe shitting oi .the .Contact lines therebetween under varying load -conditions, is also suon as to minimize Vfriction between the parts, as the contacts between said contact-faces are on contact-lines throughout, and said contact-lines move inwardly or away from the end kof the spring substantially simultaneously on bothsaid contact-faces as the load increases, and move substantially simultaneously outwardly or toward the end of the spring as' the load decreases, in simulation of a rolling motion between said contact-faces, whereby wear of said contact-faces is vminimized, there being however -a very slight, lateral movement between the contact-lines on said respective contact-faces due to the straiglitening and bending,` of `the ,spring under varying load conditions, which however cause only negligible wear if .any wear isyresultant therefrom. y

Having ythus fully described ymy invertk tion, what I claim as new, :and `desire .to secure by Letters Patent, is l l. In a spring mounting 'for ,a motor vehicle, the combination with the' `chassis and the axle, of y a 'spring :of sfia'i-gl-e v'curvature whosevuoncave side is presented upwardly an upwardly securing .ein Y. Y

fand meansrfor securing said block to said chassis, said ,blocky provided with a downwardly presented convex contact-acehav'- ing'an outerportion of less curvature'coacting with the outer end of said upwardly presented concavecontact-face of said spring during lighter loady conditions, and an inner portion of greater curvature coacting with an inner vportion of said upwardly presented concave contact-face of said spring during heavierload conditions, said convexv contact-face being of greater curva-l tures than the curvature of said coacting concave contact-face, said curvatures extending in the saine general directions, and said* downwardly presented .convex contactf` face of different curvatures coacting lwith said upwardly presented concave contactfacefof said spring by means of varying line-contacts between said faces varying automatically with load conditions.

2. In a spring mounting for a motor vehicle, the combination with the chassis and the axle, ofra spring of single curvature whose concave side is presented upwardly, and whose outer end forms an upwardly presented concave contact-face, means for securing said spring to saidjaxle', a bloclr,k

and means for securing said .bloclrto said chassis, said block provided with a down` wardly presented convex contact-face having an outer portion of less curvature coacting with the outer end of said upwardly presented concave contact-tace of said spring during lighter load conditions, and an vinner portion yof greater curvature coacting with an inner portion'of said upwardly presented concave contact-face of said spring?v during presented concave spring by means vof varying line contacts between said faces varying automatically withload conditions, and the end of said `downwardly presented convex curvap ture toward'the outer end of said spring being higher thany the lend ot said downinwardly presented-iv convex curvature distanced from the outerend of saidl spring.

3. In a spring suspension for a motor vehiclejthe combination with the chassis and the axle, of aspring ofsingle curvature whose concave. side is presented upwardly,

and whose. outerend forms "an upwardly presented concave contact-face, ineans. for securing saidspring to said axle,` ka block having'a cavity'provided'with curved andy `i converging end walls, an'upper brace-wall, a downwardly presented bracket,-an outer side vwall, a sidecflange and an end-flange, and

ineans for securing said side flange and said end flange to said chassis, said bracket having adownwardly presented convex contact-- face 'coacting with said iirst-na-ined contactface, and theinneredgesfof said spring coacting with said outer side wall for relativelocation between the saine.

In testimony whereo,I have hereunto signed my naine. l i

oTTo Ai'aMLiiDiiit.` 

